Preprint Review Version 1 Preserved in Portico This version is not peer-reviewed

Recent Advances in Acoustic Metamaterials for Simultaneous Sound Attenuation and Air Ventilation Performances

Version 1 : Received: 21 July 2020 / Approved: 22 July 2020 / Online: 22 July 2020 (11:19:36 CEST)
Version 2 : Received: 26 July 2020 / Approved: 27 July 2020 / Online: 27 July 2020 (11:51:22 CEST)

A peer-reviewed article of this Preprint also exists.

Kumar, S.; Lee, H.P. Recent Advances in Acoustic Metamaterials for Simultaneous Sound Attenuation and Air Ventilation Performances. Crystals 2020, 10, 686. Kumar, S.; Lee, H.P. Recent Advances in Acoustic Metamaterials for Simultaneous Sound Attenuation and Air Ventilation Performances. Crystals 2020, 10, 686.

Journal reference: Crystals 2020, 10, 686
DOI: 10.3390/cryst10080686

Abstract

In the past two decades, acoustic metamaterials have garnered much attention owing to their unique functional characteristics, which is difficult to be found in naturally available materials. The acoustic metamaterials have demonstrated to exhibit excellent acoustical characteristics that paved a new pathway for researchers to develop effective solutions for a wide variety of multifunctional applications such as low-frequency sound attenuation, sound wave manipulation, energy harvesting, acoustic focusing, acoustic cloaking, biomedical acoustics, and topological acoustics. This review provides an update on the acoustic metamaterials' recent progress for simultaneous sound attenuation and air ventilation performances. Several variants of acoustic metamaterials, such as locally resonant structures, space-coiling, holey and labyrinthine metamaterials, and Fano resonant materials, are discussed briefly. Finally, the current challenges and future outlook in this emerging field is discussed as well.

Subject Areas

acoustic metamaterials; Sound attenuation; Air ventilation; Acoustic resonance

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